** Changed in: neutron
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1267649
Title:
duplicate port create requests to neutron by compute
Status in OpenStack Neutron (virtual network service):
Fix Released
Bug description:
When quantum server is slow in responding to the port create requests (30
seconds or more) we are seeing duplicate port requests being made for the same
operation. This is related to the value set for the quantum_url_timeout
parameter (30 seconds by default) and by increasing the value we get duplicate
port requests only for those quantum requests taking longer than the new
timeout value.
It appears that the quantum client is retrying the request on timeouts and is
an error to do it for POST which is non-idempotent and in this case creates
duplicate ports. Further investigation of the problem shows that this is
coming from the httplib2 library which retries requests on socket time out.
https://code.google.com/p/httplib2/issues/detail?id=109
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